- shake a leg
- shake a leg1. to hurry; to move faster. (Often as a command.) •
Let's shake a leg, you guys. We gotta be there in twenty minutes.
•She told me to shake a leg, so I hurried the best I could.
2. to dance. •Let's shake a leg. The music's great.
•Hey, Jill! You wanna shake a leg with me?
* * *{v. phr.}, {slang} To go fast; hurry. * /Shake a leg! The bus won't wait./ Compare: STEP ON IT.
Dictionary of American idioms. 2013.